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SCIENTIFIC DISCOVERY Scientific Models Example: Gravity

SCIENTIFIC DISCOVERY Scientific Models Example: Gravity. Science, Arts, Humanities -> MODELS Characteristics of Scientific Model Valorized by experiment and observation Refutable, not provable Not absolute truth – quantify uncertainty Evolve, replaced over time …….

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SCIENTIFIC DISCOVERY Scientific Models Example: Gravity

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  1. SCIENTIFIC DISCOVERY • Scientific Models • Example: Gravity

  2. Science, Arts, Humanities -> MODELS Characteristics of Scientific Model • Valorized by experiment and observation • Refutable, not provable • Not absolute truth – quantify uncertainty • Evolve, replaced over time • …….

  3. Example of Evolution by Refutation: Gravity Observation Ptolemy’s Geocentric model, 1stC - Circular orbits around Earth Refuted by Copernicus’s Heliocentric model, 16thC- Circular orbits around Sun Refuted by Kepler’s Heliocentric model, 17thC- Elliptical orbits around Sun

  4. Mathematical Models Relate disparate observations in universal framework (Aristotle, 300 B.C. – Philosophy) Newton, 17thC First universal model of motion Einstein, 20thC Models of motion refute Newton’s • Perihelionof Mercury • Newton 99.2 % accurate • (disproved, but good approx). • Einstein accurate within • experimental error.

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